baber/WOPTO huggingface dataset:
Patent GB-432491-A (GB)
Title: Improvements in or relating to methods of and apparatus for reducing and regulating the pressure of fluids
IPC: G05D16/16
Filed: 1934-01-24
Abstract: 432,491. Pressure - regulating valves. LINDE AIR PRODUCTS CO., 30, East 42nd Street, New York, U.S.A.-(Assignees of Smith, G. H., and Jacobsson, W. J.) Jan. 24, 1934, No. 2476. Convention date, Jan. 24, 1933. [Class 135] A valve for reducing and regulating the pressure of a fluid comprises a main valve controlled by a pilot valve, the latter controlling the flow of high pressure inlet fluid to actuate the main valve and wherein only one or other of the main and pilot valves opens against the inlet pressure. The main valve 30 controls the flow from the inlet pipe 21 to the delivery pipe 24 and comprises a resilient seat 29 secured by a nut 35 to the valve head 30 and seating on a convex seat 26 screwed to the housing. The valve is guided by a stem 33 around which a split ring 43 is arranged to prevent chattering. An extension 32 of the valve engages a plate 46 secured to a diaphragm D in which the chamber E is exposed to delivery pressure and the chamber F to inlet pressure under the control of the pilot valve T. Inlet pressure is admitted to the valve seat 67 and the pilot valve T is housed in a yoke 70 and loaded by a spring 73. Attached to the yoke 70 are two diaphragms X, Z separated by a disc 81 with radial ports 104, and provided with a tapered bore which allows a larger area of the diaphragm Z than of diaphragm X to be exposed to the pressure existing between the two diaphragms. The diaphragms are loaded by the spring 88 which is adjusted by the screw 94. The space between the diaphragm X, Z is connected by a port to the outlet side of the main valve. A restricted passage 97 is provided and connects the chamber C to the interior of the disc 81. The chamber C is connected to the chamber F. Variations in the delivery pressure acting on the diaphragms X, Z vary the opening of the pilot valve T and thus vary the pressure in the chamber F to actuate the main valve 30. The ratio of the area of the diaphragm D to the area of the main valve 30 is the same as the area of the diaphragm X to the area of the pilot valve T. A modification is described wherein the pilot valve opens against the inlet pressure and the inlet pressure tends to open the main valve.
Patent GB-430894-A (GB)
Title: Tea and like strainers
IPC: A47J43/22
Filed: 1935-01-25
Abstract: 430,894. Strainers. WEYERMANN, T., Goldswil, near Interlaken, Berne, Switzerland. Jan. 25, 1935, No. 2482. Convention date, Jan. 26, 1934. [Class 46] A strainer for tea, &c., comprises a supporting member with tongue 4 and handle 5 and a straining mem. ber 2, which is made of paper so that it can be replaced.
Patent GB-126706-A (GB)
Title: Improvements in and relating to the Production of Glycerine.
Inventor: LEMMENS GUSTAVE JOHN
IPC: C11D19/00
Filed: 1917-02-21
Abstract: 126,706. Lemmens, G. J. Feb. 21, 1917. Glycerine, obtaining.-In the production of glycerine by heating oil or fat in an autoclave at a pressure of about 100 lb. per sq. inch in the presence of zinc oxide, hydroxide, &c., the operation is carried out in two stages to increase the yield of glycerine. After heating for a period such as 8 hours, the strong glycerine solution is drawn off and replaced by hot distilled water, and the heating is continued for a further period such as 4 hours. The relatively dilute solution of glycerine from the second stage of the process may be used instead of water for the initial treatment of the next charge of oil or fat.
Patent GB-824934-A (GB)
Title: Improvements in or relating to clothes pegs
IPC: D06F55/00
Filed: 1956-01-26
Abstract: 824,934. Clips; clothes pegs. GORDON, C. B. Oct. 8, 1956 [Jan. 26, 1956], No. 2561/56. Class 44 A clothes peg consists of a single strand of resilient material bent so as to form two limbs 20 which extend side by side from their free ends 24 and then cross over each other to form a loop 21 and an outwardly bowed portion 23 in at least one of the limbs adjacent the loop, in which the strand lies in and is bent in substantially one plane only. As shown, the free ends 24 are splayed outwardly.
Patent GB-1164592-A (GB)
Title: A Circuit Arrangement for use in Automatic Loud-Speaking Intercoms.
IPC: H04M11/02
Filed: 1968-01-17
Abstract: 1,164,592. Interconnection systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. 17 Jan., 1968 [18 Jan., 1967], No. 2603/68. Heading H4K. In a system particularly for hospitals, each patient is provided with a loudspeaker TL for connection by a line unit L, LN to a common speech line S which may be connected at a switchboard Vx to a main station Hu or to a suitably located secondary station Bi. The actuation of a pushbutton K by a patient operates through a calling unit A, AN an identifier Id which controls a lamp or other indicator Tb. If the call is answered at Bi by actuation of key Ks, the line unit L, LN of the caller, which has been prepared by A, AN, is operated to effect the connection to line S. If A, AN has been restored, key Ki may be used to effect the connection by a control over line S1. If the call is answered from the main station Hu the caller is selected without the use of the identifier Id. A non-calling patient may also be selected through the switchboard Vx. To provide for simultaneous calls, a device To may scan the identifier Id cyclically or in some preferential order. The loudspeakers TL may also be connected to program lines PP.
Patent GB-1523262-A (GB)
Title: Washing machine
IPC: D06F37/26
Filed: 1977-01-21
Abstract: 1523262 Washing-machines LICENTIA PATENT VERWALTUNGS GmbH 21 Jan 1977 [21 Jan 1976] 02620/77 Heading DIA In a drum-type washing machine having a double-walled tank, between the walls 3, 4 of which cooling water can be passed to condense steam during a drying operation, an outlet opening is formed by bending out the edges 11, 10 of the respective walls and a pipe or hose 9 for connection to a drainage pump is held by its enlarged end edge against the wall edges by means of a tension band 13.
Patent GB-1302123-A (GB)
IPC: A63H33/04
Filed: 1970-01-20
Abstract: 1302123 Furniture joints A FISCHER 20 Jan 1970 [3 Feb 1969] 2702/70 Heading A4H [Also in Divisions A6, E1] An injection moulded hollow building component, e.g. for furniture or toy models, is formed in one piece from two L-shaped angle plates 16, 17 providing four lateral walls 4, the plates 16, 17 being joined along a common longitudinal edge by an elastic skin 18 about which the plates 16, 17 are folded into a position in which the edges 19, 20 are cemented or welded together. Each lateral wall 4 has a longitudinal re-entrant connection  groove 7. Each plate 16, 17 has an integral end wall such as 22, one end wall having a re-entrant connection groove 21, and the other a re-entrant connection tenon. Each end wall has circular recesses 14 for axles in the region of grooves 7.
Patent GB-349958-A (GB)
Title: An improved process and apparatus for carrying out gas reactions at high temperatures
IPC: B01J10/02
Filed: 1930-01-27
Abstract: <PICT:0349958/III/1> <PICT:0349958/III/2> Hydrocyanic acid; benzene and other unsaturated hydrocarbons.--Endothermic gas reactions at temperatures over 1000 DEG  C. and at high space velocities are carried out by passing the gas through unpacked reaction chambers which are long, deep and very narrow and are sandwiched between long and deep heating flues.  Examples of suitable reactions are the production of hydrocyanic acid from ammonia and hydrocarbons described in Specification 335,947, [Class 1 (ii), Inorganic compounds, other than &c.], and the pyrolysis of hydrocarbons to obtain benzene and other unsaturated hydrocarbons as in Specification 342,319, [Group IV].  In the apparatus shown in Figs. 1 and 3, the reaction chambers 1, which are only one or two inches wide and several feet high and deep and constructed of or lined with a refractory material such as sillimanite, traverse a combustion chamber 2.  A number of walls 6 are built across this chamber which is thus divided into a number of flues which completely surround the reaction chambers and ensure effective heat transfer.  The air for combustion is preheated by regenerators 5 and passes into the combustion space 2 through ports 4, the gas for combustion being admitted through ports 3.  The gaseous reactants are also preheated in a suitable apparatus by the products of the reaction. Specification 335,411, [Class 1 (i), Chemical processes &c.], also is referred to.ALSO:<PICT:0349958/IV/1> <PICT:0349958/IV/2> The pyrolysis of hydrocarbons to obtain benzene and other unsaturated hydrocarbons as in Specification 342,319 at temperatures over 1000 DEG  C. and at high space velocities is carried out by passing the gas through unpacked reaction chambers which are long, deep and very narrow and are sandwiched between long and deep heating flues.  In the apparatus shown in Figs. 1 and 3, the reaction chambers 1, which are only one or two inches wide and several feet high and deep and constructed of or lined with a refractory material such as sillimanite, traverse a combustion chamber 2.  A number of walls 6 are built across this chamber, which is thus divided into a number of flues which totally surround the reaction chambers and ensure effective heat transfer.  The air for combustion is preheated by regenerators 5 and passes into the combustion space 2 through ports 4, the gas for combustion being admitted through ports 3.  The gaseous reactants are also preheated in a suitable apparatus by the products of the reaction.  Specifications 335,411, [Class 1 (i), Chemical processes &c.], and 335,947, [Class 1 (ii), Inorganic compounds, other than &c.], also are referred to.
Patent GB-1082348-A (GB)
Title: A selvedge-forming device on a loom
Inventor: LUTZ FREDERICH
IPC: D03C7/08
Filed: 1966-01-20
Abstract: 1,082,348. Leno selvedge mechanisms. RUTI MACHINERY WORKS Ltd. Jan. 20, 1966, No. 2745/66. Heading D1E. A leno-type selvedge mechanism comprises gears 12, 27 which rotate continuously at the same speed and in the same direction and have guide eyes 14, 15 and 29, 30 respectively, the gear 27 carrying a spool 35 having threads 37, 38 which pass respectively through the eyes 29, 14 and 30, 15, the angle alpha between the spools, the pitch circle diameters D and d of the eyes and then angular offset being arranged to a formula which ensures that, at all positions of rotation of the gears, the length of thread between the spool and fell is constant. A second set of gears may be provided which rotate in opposite directions to avoid thread entanglement.
Patent GB-228563-A (GB)
Title: Variable speed gearing
IPC: F16H33/12
Filed: 1925-01-30
Abstract: 228,563. Sturbelle, L. C. Jan. 30, 1924, [Convention date]. Variable-speed gearing is rendered automatic by a planetary mass or masses 6, which rotates about an eccentric radial pivot or axis 7 with cyclically variable speed. The mass 6 is carried by a frame 8 secured to the driven shaft 9. A radial spindle 3 is supported in the frame 8 and is connected on the one hand by a crank 4 and link 5 to the mass 6, and on the other hand by a bevel gear pair 2 to the driving-shaft 1. The mass 6 may also be guided by a cam track in addition to the pivot connection 7. Driving and driven shafts may be interchanged.
Patent GB-794263-A (GB)
Title: Improvements in or relating to heading tapes for curtains
Inventor: FRENCH ROGER
IPC: A47H13/16
Filed: 1955-02-01
Abstract: 794,263. Curtain heading tapes. FRENCH & SONS, Ltd., T. Jan. 5, 1956 [Feb. 1, 1955], No. 2908/55. Class 142(4) [Also in Group XIV] A curtain heading tape, with the usual hook pockets 12, has at least one elastic draw cord 13 woven in with 25 per cent stretch so that release of the tension causes the tape to be pleated. Preferably one elastic draw cord is used together with a second parallel non-elastic cord 14 (which may be alongside the elastic cord instead of as shown), in order to prevent local stretching of the elastic cord and consequent deformation of the pleats during use. The invention may also be applied to heading tape having a single horizontal pocket through which e.g. a spring curtain support passes.
Patent GB-1041302-A (GB)
Title: Method for controlling the spread of fire
IPC: B01J19/00
Filed: 1964-01-23
Abstract: A method for controlling the spread of fire in burning flammable materials comprises coating the surfaces of combustible material adjacent to said burning flammable materials with a particulate coating composition of water-swollen gelled particles of a cross-linked water-insoluble water-swellable polymer, said polymer constituting from 0.01 weight per cent to 5.0 weight per cent of said coating compositions.  Suitable polymers include crosslinked salts of polyacrylic, polymethacrylic, polysulphoethylacrylic and polysulphoethylmethacrylic acids, crosslinked polyglycols, polysodium styrene, sulphonate, sulphonated polyvinyl toluene salts, copolymers of these sulphonated aromatic compounds with acrylates, methacrylates, acrylonitride or alkyl acrylonitriles, polyvinyl alcohol, polyacrylamide, copolymers of acrylamide with acrylic acid or its salts, polyvinyl morpholine, poly-5-methyl-N-vinyl-2-oxazolidinone and polyvinyl pyrrolidone.  The polymers may be cross-linked chemically e.g. with methylenebisacrylamide or by means of ionizing radiation.  Examples are given of the use of aqueous compositions containing acrylic polymers for coating wooden panels to fireproof them.
Patent GB-524366-A (GB)
Title: Improvements in spectacle frames
IPC: G02C5/14
Filed: 1939-01-28
Abstract: 524,366. Spectacle frames. BLACKBURN, A., and RAPHAELS, Ltd. Jan. 28, 1939, No. 3017. [Class 97 (i)] Each side-arm 1 is outwardly curved along its middle portion to conform to the shape of the face, but is reversely curved at its forward end 3, so that these ends of the two arms lie approximately parallel to each other when the frame is in use. The rear end of each arm may also be reversely curved. The arms may be of elongated spear form in side view ; they may be roughened or serrated on their inner faces 4 to provide a firmer grip on the face ; their free ends may be curved to encircle the ears ; and they may be made of tortoiseshell, synthetic resin, shaped metal strip, or metal wire forming an openwork structure.
Patent GB-205042-A (GB)
Title: Improvements in screw-cutting taps
IPC: B23G5/06
Filed: 1923-02-01
Abstract: 205,042. Coenen, E. Oct. 6, 1922, [Convention date]. No Patent granted (Sealing fee not paid). Taps.-In screw-cutting taps of the type in which the cutting-edges instead of being arranged parallel to a generatrix are inclined thereto so as to cut in an oblique direction, the cutting-edges are arranged along lines inclined in different directions. The grooves along which the cutting-edges are arranged may be parallel to a generatrix, as in Fig. 3, or inclined thereto as in Fig. 4, the cutting-edges along each groove being inclined alternately to the right and left in each case. The grooves are preferably helical. The Specification as open to inspection under Sect. 91 (3) (a) describes also a tap including roughing and finishing portions, a radially adjustable tool being arranged between them when there is an appreciable difference of diameter. Each groove may provide cutting-edges inclined in both directions as in Fig. 9, the inclination being staggered in adjacent lands, and in this form the cutting-edges are under-cut. This subject-matter does not appear in the Specification as accepted.
Patent GB-730914-A (GB)
Title: Improvements in and relating to circular looms
IPC: D03D3/00
Filed: 1953-02-03
Abstract: 730,914. Circular looms hose pipe fabrics. CHRISTIANSEN, C., and RUSCH, G. O. K. Feb. 3, 1953 [Feb. 4, 1952], No. 3089/53. Classes 142(2) and 142(4). To produce a hose with a twill weave, the warps are arranged in groups of at least three threads 9, 10, 11 and pass through corresponding heddles 12-14. The healds are operated by levers 15-17 pivoted at 22 and actuated by cams 18-20 on a shaft 21. Two groups of heddles may be operated from one shaft 21. Shafts 21, extending round the loom, may all be connected by universal joints and driven by one shaft 21. A shed opening frame 6, 7 rotates with each shuttle.
Patent GB-591551-A (GB)
Title: Improvements in or relating to electrical insulating compositions
IPC: H01B3/08
Filed: 1945-02-07
Abstract: A machinable electric insulating composition comprises a finely-divided crystalline material having a high dielectric constant and consisting of titania and/or a titanate, mixed with a finely divided mineral capable of imparting machinable properties, e.g., mica or asbestos, and a bond consisting of a glass frit which softens below the temperature of dissociation of mica. Water or a solution of water glass may be used as a temporary binder; alternatively no binder may be used and the ingredients packed in a mould and heated as rapidly as possible to a temperature of 1100-1400 DEG F. to soften the glass.  The frit may be a sodium-potassium or lead borate.  If the product is relatively porous, it may be impregnated with a wax or other water-repellent substance of high insulating value.  The titanium compound may amount to 75 per cent. of the composition, but the proportions are normally 10-60 per cent. titanium compound, 10-50 per cent. mica, and 30-40 per cent. frit, with water from 8-12 per cent. of the mixture.  After moulding, the composition is cooled slowly, the outer skin is ground off, and the formed material is then cut and machined as required.
Patent GB-1488181-A (GB)
Title: Vehicle control apparatus
IPC: B60K31/00
Filed: 1975-01-24
Abstract: 1488181 Automatic speed control K H SCHMALL 24 Jan 1975 [25 Jan 1974 23 Feb 1974] 3158/75 Heading G3R [Also in Division B7]  The speed control device of a motor vehicle engine can be adjusted alternatively by the driver or by an automatic control arrangement in dependence on a switch operable by the driver. The automatic arrangement includes a comparator receiving actual and desired vehicle speed signals. As shown in Fig. 1, an electric motor 14 is energized in accordance with the difference between a voltage set by a potentiometer 18 and a voltage derived by a converter 16 from pulses produced by a motor vehicle contact breaker, tachogenerator or optical speed sensing device. To obtain automatic speed regulation, the vehicle driver places his foot on a plate 4, thereby operating a lever 12 which presses a roller 11 against a shift rod 10. The rod is then driven longitudinally by a wheel 13 on the output shaft of the motor 14. The rod 10 acts through an additional pedal 8 to move the vehicle accelerator pedal 9 and thus regulate the vehicle speed in accordance with the setting of potentiometer 18. To return to driver control, the foot is lifted from the plate 4, thereby removing the pressure from the rod 10 and wheel 13, and the pedal 8 is controlled in the normal manner. In an alternative arrangement, Fig. 3 (not shown), the plate 4 actuates an electrical contact, causing relays to couple the shaft of motor 14 to a rack and pinion device connected between the accelerator pedal and the vehicle carburetter. The set voltage on potentiometer 18 may be automatically reduced when the vehicle is travelling around a bend by connecting a potentiometer between the vehicle steering and the regulator, Fig. 4 (not shown). In other embodiments, Figs. 5 and 6 (not shown), arrangements are provided whereby the reference voltage produced by potentiometer 18 is maintained equal to the voltage from the actual speed converter 16 when the vehicle is under driver control, so that a smooth transition to automatic control is ensured when the driver actuates the plate 4 at any desired vehicle speed.
Patent GB-911481-A (GB)
Title: New thiophane derivatives and process for their production
IPC: C07D333/32
Filed: 1961-01-27
Abstract: The invention comprises thiophane derivatives of the general formula <FORM:0911481/IV (b)/1> wherein R represents hydrogen or an alkyl or cycloalkyl radical having from 1 to 6 carbon atoms, X represents a hydroxy radical and Y represents a hydrogen atom or X and Y together represent an oxo radical, and Z represents a monovalent anion or an equivalent of a polyvalent anion, and the preparation thereof by reducing a thiophane derivative of the general formula <FORM:0911481/IV (b)/2> wherein X1 represents a hydroxy radical and Y1 represents a hydrogen atom or X1 and Y1 each represent an alkoxy radical or together represent an oxo radical or an alkylenedioxy radical and R has the above significance, with aluminium hydride in an amount sufficient to reduce the amide radical and any oxo radical present, the treatment being performed in an ether like solvent, converting aketal reaction product which contains a 3-dialkoxy or alkylenedioxy substituent, advantageously by acid hydrolysis or transketalisation, into the corresponding free oxo compound, if desired reducing the oxo radical as above to the corresponding 3-hydroxy compound, if desired reacting the oxo or hydroxy compound of the first general formula above with a reactive ester of methanol to form a compound of the second general formula above and, if desired, replacing the anion produced by another anion.  The second reduction step above may also be effected with sodium or potassium borohydride or with catalytically activated hydrogen.  In the examples hydrochloride salts of the substituted thiophanes of the first general formula above are also prepared.  Cis and trans forms of the substituted thiophanes of the second general formula above may be separated by fractional crystallisation of the L-di-p-toluyl tartrates thereof.  Thiophanes of the general formula <FORM:0911481/IV (b)/3> wherein X1 and Y1 each represent an alkoxy radical or together represent an alkylenedioxy or oxo radical and R have the above significance, are prepared by esterifying the required 2-R substituted -3-oxo-5-carboxylic acid to form the corresponding 5-carboxylic acid ester when required acetalising the oxo group, to form a 3-dialkoxy (or 3-alkylenedioxy)-2R-substituted-5-carboxylic acid ester, and finally heating the 5-carboxylic ester with dimethylamine.  2-R-substituted-3-oxo-thiophane-5-carboxylic acids wherein R represents an alkyl or cycloalkyl radical having 1 to 6 carbon atoms, are prepared by reacting the required a -R-substituted-a -thioacetic acid alkyl esters and maleic acid dimethyl ester and cyclising the products, saponifying and decarboxylating the resulting 2 - R - substituted - 3-oxo-thiophane-4,5-dicarboxylic acid dimethyl esters.
Patent GB-1381851-A (GB)
Title: Apparatus and method for feeding sheets from the bottom of a stack
IPC: B41L29/16
Filed: 1972-01-24
Abstract: 1381851 Feeding sheets; strippers GESTETNER Ltd 18 Jan 1973 [24 Jan 1972] 3265/72 Heading B8R [Also in Division B6] When a sheet is to be separated from the bottom of a pile resting on a fixed tray 30 and pressed down by a weight on its rear end and a pivoted weight resting on its front end, a control mechanism, Fig. 1 (not shown), moves a plate  36 to the right, thereby rotating a friction separator roller 31 clockwise to move the bottom sheet against a trip bar 33, causing the sheet to buckle downwards. A lever 37 carried on the plate 36 then rotates the trip bar counterclockwise to release the leading edge of the sheet, while a support plate 32 swings upwards to flatten the buckle and assist forward movement of the sheet, which is directed by a guide 82 to feed rollers 42, 43, the latter being rotated by the control mechanism when a sheet is to be fed. When a further sheet is to be separated, the plate 36 is first moved to the left, the wheel 31 being moved clear of the pile or not rotating because of a freewheel arrangement, prior to its next operative rightward stroke.